noun
A name used in business or commerce, often a brand or product name.
この薬のトレードネームは「アスピリン」です。
The trade name of this medicine is 'Aspirin'.
Variant with interpunct; less common but still seen.
商標 is a trademark, a legally registered mark, while トレードネーム is a name used in trade, not necessarily registered.
Borrowed from English 'trade name'.